From: Piergiorgio Sartor <piergiorgio.sartor@nexgo.de>
To: Neil Brown <neilb@suse.de>
Cc: Piergiorgio Sartor <piergiorgio.sartor@nexgo.de>,
"Martin K. Petersen" <martin.petersen@oracle.com>,
Bill Davidsen <davidsen@tmr.com>, Steven Haigh <netwiz@crc.id.au>,
Bryan Mesich <bryan.mesich@ndsu.edu>,
Jon@eHardcastle.com, linux-raid@vger.kernel.org
Subject: Re: Why does one get mismatches?
Date: Thu, 25 Feb 2010 09:41:41 +0100 [thread overview]
Message-ID: <20100225084141.GA2927@lazy.lzy> (raw)
In-Reply-To: <20100225092106.5b7dd6ba@notabene.brown>
Hi,
> I certainly believe you.
thank you!
> That is really odd! Both the kernel ext3 module (triggered by '-text3')
> and the 'mount' program use exactly the same test - look for the magic
> number in the superblock at 1K into the device.
Today I tried: blkid -p /dev/md1 (this time the live CD
autoassembled the md device) and it returned something
like: ambivalent result (probably more than one filesystem...)
Strange thing is that, the HDDs were brand new, no older
partitions or filesystem were there.
Anyway, I've one small correction, the RAID is not 10 f2,
on this PC, but (due to different installation) a RAID-1
with superblock 0.9 and the device partitions are set
to 0xFD (RAID autoassemble).
> Would you be able to get the first 4K from each device in the raid10:
> dd if=/dev/whatever of=/tmp/whatever bs=1K count=4
>
> and the tar/gz those up and send them to me. That might give some clue.
> Unless the raid metadata is 1.1 or 1.2 - then I would need blocks further in
> the device, as the 'data offset'.
> The --detail output of the array might help too.
I dumped the first 4K of each device, they're identical
(so no mismatch there, at least), I'll send them to you,
together with the detail output.
> > Running a fsck did not find anything wrong, but it did
> > not repair anything too.
>
> Did you use "fsck -f" ??
Yep.
> Until we know what is wrong, it is hard to suggest a fix.
Thanks a lot (also because this could turn out to be unrelated
with this mailing list).
bye,
--
piergiorgio
next prev parent reply other threads:[~2010-02-25 8:41 UTC|newest]
Thread overview: 104+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-01-20 11:52 Fw: Why does one get mismatches? Jon Hardcastle
2010-01-22 18:13 ` Goswin von Brederlow
2010-01-24 17:40 ` Jon Hardcastle
2010-01-24 21:52 ` Roger Heflin
2010-01-24 23:13 ` Goswin von Brederlow
2010-01-25 10:07 ` Jon Hardcastle
2010-01-25 10:37 ` Goswin von Brederlow
2010-01-25 10:52 ` Jon Hardcastle
2010-01-25 17:32 ` Goswin von Brederlow
2010-01-25 19:32 ` Iustin Pop
2010-02-01 21:18 ` Bill Davidsen
2010-02-01 22:37 ` Neil Brown
2010-02-02 15:11 ` Bill Davidsen
2010-02-03 11:17 ` Goswin von Brederlow
2010-02-11 5:14 ` Neil Brown
2010-02-11 17:51 ` Bryan Mesich
2010-02-16 21:25 ` Bill Davidsen
2010-02-16 21:38 ` Steven Haigh
2010-02-17 3:19 ` Bryan Mesich
2010-02-17 23:05 ` Neil Brown
2010-02-19 15:18 ` Piergiorgio Sartor
2010-02-19 22:02 ` Neil Brown
2010-02-19 22:37 ` Piergiorgio Sartor
2010-02-19 23:34 ` Asdo
2010-02-20 4:27 ` Goswin von Brederlow
2010-02-20 11:12 ` Asdo
2010-02-21 11:13 ` Goswin von Brederlow
[not found] ` <8754A21825504719B463AD9809E54349@m5>
[not found] ` <20100221194400.GA2570@lazy.lzy>
2010-02-22 13:01 ` Asdo
2010-02-22 13:30 ` Piergiorgio Sartor
2010-02-22 13:44 ` Piergiorgio Sartor
2010-02-24 19:42 ` Bill Davidsen
2010-02-20 4:23 ` Goswin von Brederlow
2010-02-24 14:54 ` Bill Davidsen
2010-02-24 21:37 ` Neil Brown
2010-02-26 20:48 ` Bill Davidsen
2010-02-26 21:09 ` Neil Brown
2010-02-26 22:01 ` Piergiorgio Sartor
2010-02-26 22:15 ` Bill Davidsen
2010-02-26 22:21 ` Piergiorgio Sartor
2010-02-26 22:20 ` Asdo
2010-02-27 6:01 ` Michael Evans
2010-02-28 0:01 ` Bill Davidsen
2010-02-24 14:46 ` Bill Davidsen
2010-02-24 16:12 ` Martin K. Petersen
2010-02-24 18:51 ` Piergiorgio Sartor
2010-02-24 22:21 ` Neil Brown
2010-02-25 8:41 ` Piergiorgio Sartor [this message]
2010-03-02 4:57 ` Neil Brown
2010-03-02 18:49 ` Piergiorgio Sartor
2010-02-24 21:39 ` Neil Brown
[not found] ` <4B8640A2.4060307@shiftmail.org>
2010-02-25 10:41 ` Neil Brown
2010-02-28 8:09 ` Luca Berra
2010-03-02 5:01 ` Neil Brown
2010-03-02 7:36 ` Luca Berra
2010-03-02 10:04 ` Michael Evans
2010-03-02 11:02 ` Luca Berra
2010-03-02 12:13 ` Michael Evans
2010-03-02 18:14 ` Asdo
2010-03-02 18:52 ` Piergiorgio Sartor
2010-03-02 23:27 ` Asdo
2010-03-03 9:13 ` Piergiorgio Sartor
2010-03-03 11:42 ` Asdo
2010-03-03 12:03 ` Piergiorgio Sartor
2010-03-02 20:17 ` Neil Brown
2010-02-24 21:32 ` Neil Brown
2010-02-25 7:22 ` Goswin von Brederlow
2010-02-25 7:39 ` Neil Brown
2010-02-25 8:47 ` John Robinson
2010-02-25 9:07 ` Neil Brown
2010-02-11 18:12 ` Piergiorgio Sartor
-- strict thread matches above, loose matches on Subject: below --
2010-02-01 23:14 Jon Hardcastle
2010-01-25 20:43 greg
2010-01-25 22:49 ` Steven Haigh
2010-01-27 21:54 ` Tirumala Reddy Marri
2010-01-28 9:16 ` Jon Hardcastle
2010-01-28 10:29 ` Asdo
2010-01-28 17:20 ` Tirumala Reddy Marri
2010-01-28 18:23 ` Goswin von Brederlow
2010-01-28 19:03 ` Tirumala Reddy Marri
2010-01-28 20:24 ` Goswin von Brederlow
2010-01-29 15:37 ` Jon Hardcastle
2010-01-29 23:52 ` Goswin von Brederlow
2010-01-30 10:39 ` Jon Hardcastle
2010-02-01 21:10 ` Bill Davidsen
2010-01-20 15:03 Jon Hardcastle
2010-01-20 15:34 ` Brett Russ
2010-01-20 20:44 ` Majed B.
2010-01-20 22:25 ` Brett Russ
2010-01-20 22:30 ` Majed B.
2010-01-20 22:43 ` Brett Russ
2010-01-20 23:01 ` Christopher Chen
2010-01-21 4:17 ` Steven Haigh
2010-01-21 8:08 ` Asdo
2010-01-21 10:52 ` Steven Haigh
2010-01-21 11:48 ` Farkas Levente
2010-01-21 12:15 ` Jon Hardcastle
2010-01-19 10:04 Jon Hardcastle
2010-01-20 14:19 ` Brett Russ
2010-01-20 14:34 ` Jon Hardcastle
2010-01-20 14:46 ` Brett Russ
2010-02-01 20:48 ` Bill Davidsen
2010-01-22 16:22 ` Jon Hardcastle
2010-01-22 16:34 ` Asdo
2010-01-22 17:41 ` Brett Russ
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